Electrode.



J. W. STUBBS. ELECTRODB.

APPLIOATION FILED 00T. 23, 1909.

947,358. Patented JaIL 25, 1910.

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IUNITED sTATEs PATENT oEEIoE.

JOHN WILLIAM STUBBS, OF MIDDLEWICH, ENGLAND, ASSIGNOR TO THE GENERALELECTROLYTIC PARENT COMPANY LIMITED, OF MIDDLEWICH, ENGLAND.

ELECTRODE.

To all whom 'it may concern:

Be it known' Athat I, JOHN WILLIAM STUBBS, a subject of the King ofGreat Britain, residing at Middlewich, in the county of Chester,England, have invented a new and useful Improvement in Electrodes, ofwhich the following is a Specification.

'The invention rela-tes to vimprovements upon the invention covered byLetters Patent No. 7314.53 of 1903, and has for its object to constructelectrodes of that kind in a simpler and more expeditious manner. It ishereafter described in conjunction with the accompanying drawingswherein- Figures 1 and 2 are sectional views at right angles to eachother of an electrode and Fig. 3 is a detail view to an enlarged scale.

In carrying out the invention we provide a pair of conductor bars a ofmetal -which may be connected together at one end b for convenience ofattachment to the external electric conductors and are separate for theremainder of their length. `Between the bars a are disposed at intervalsthe crossl bars or nipples of carbon c. Lead or other suitable easilyfusible metal Z is then cast around the carbon nipples and between themand the carbon bars a thus attaching the carbon nipples firmly to theconductor bars both mechanically and electrically. Holese may be made inthe conductor bars into which the lead will flow for Stronger attachmentof the lead.

When casting the lead we prefer to place distance pieces between theconductor bars on each side of each carbon nipple as shown Specification'of Letters Patent. Application filed October 23, 1909. Serial No.524,242. i

by dotted lines f so as to form molds into which the lead is poured, thebars being laid on a table. The distance pieces may be either removed ornot when the meta] has cooled7 and the conductor bars are then.

coated with tar, pitch, paraffin wax, asbestos impl-e ated with oil, orother impervous insu ating material to prevent diu'- sion of theelectrolyte to the metal, and corrosion of the latter, and finallycovered with Portland cement or other similar insulating cement ormaterial g. The ends of the carbon nipples are furnished with the usualcarbon blocks h.

I claim- 1. An electrode having two separated In testimony whereof Ihave signed'iny Patented Jan. 25, 1910. l

name to this specification in the presence of two subscribing witnesses.

JOHN IVILLIAM STUBBS.

Witnesses:

W. B. JOHNSON, W. H. STEVENS.

